Document and Entity Information
| Document and Entity Information Document and Entity Information | Feb. 05, 2020 |
| Entity Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Feb. 5, 2020 |
| Entity File Number | 1-11607 |
| Entity Registrant Name | DTE Energy Co |
| Entity Incorporation, State or Country Code | MI |
| Entity Tax Identification Number | 38-3217752 |
| Entity Address, Address Line One | One Energy Plaza |
| Entity Address, City or Town | Detroit |
| Entity Address, State or Province | MI |
| Entity Address, Postal Zip Code | 48226-1279 |
| City Area Code | 313 |
| Local Phone Number | 235-4000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000936340 |
| Amendment Flag | false |
| Common stock, without par value | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Common stock, without par value |
| Trading Symbol | DTE |
| Security Exchange Name | NYSE |
| 2012 Series C 5.25% Junior Subordinated Debentures due 2062 | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 2012 Series C 5.25% Junior Subordinated Debentures due 2062 |
| Trading Symbol | DTQ |
| Security Exchange Name | NYSE |
| 2016 Series B 5.375% Junior Subordinated Debentures due 2076 | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 2016 Series B 5.375% Junior Subordinated Debentures due 2076 |
| Trading Symbol | DTJ |
| Security Exchange Name | NYSE |
| 2016 Series F 6.00% Junior Subordinated Debentures due 2076 | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 2016 Series F 6.00% Junior Subordinated Debentures due 2076 |
| Trading Symbol | DTY |
| Security Exchange Name | NYSE |
| 2017 Series E 5.25% Junior Subordinated Debentures due 2077 | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 2017 Series E 5.25% Junior Subordinated Debentures due 2077 |
| Trading Symbol | DTW |
| Security Exchange Name | NYSE |
| Corporate Units, 6.50% [Member] | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 6.50% Corporate Units |
| Trading Symbol | DTV |
| Security Exchange Name | NYSE |
| DTE Electric | |
| Entity Information [Line Items] | |
| Entity File Number | 1-2198 |
| Entity Registrant Name | DTE Electric Co |
| Entity Incorporation, State or Country Code | MI |
| Entity Tax Identification Number | 38-0478650 |